Year	% gross
1970	6.42552995681763
1971	6.91256999969482
1972	7.68015003204346
1973	8.43082046508789
1974	9.77618980407715
1975	10.3526296615601
1976	12.1275100708008
1977	13.8994798660278
1978	14.5849199295044
1980	14.9026203155518
1981	15.4497900009155
1983	18.3503894805908
1991	18.9957008361816
1999	32.5219306945801
2000	32.0835189819336
2001	36.3670082092285
2002	39.0921592712402
2003	41.6744194030762
2004	43.3663902282715
2010	54.1147003173828
2015	53.6104583740234
2020	51.4859008789062
2021	56.4838218688965
2022	74.4779968261719